Fault tolerant superconducting busbar with reduced self-field effect on critical current design for all electric aircraft

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Abstract

High Temperature Superconductors (HTS) are promising solution for high current applications such as in all-electric aircraft. According to Paschen's law of voltage breakdown, low voltage is recommended for electric aircraft and high current is required to provide sufficient thrust. A superconducting high current low voltage DC busbar for electric aircraft power distribution system design is proposed and tested in liquid nitrogen at range of 77 K temperature. The emphasis gives to create a design that allows modularity, ride through transients or fault events and reduced effect of self-field on critical current (IC). Design is developed through finite element modelling (FEM) using COMSOL software to study effect of gap between HTS tapes on critical current. A prototype is developed, and experimented with 1 kA at 77K, which measured V-I characteristics and tested against fault current.
Original languageEnglish
Article number4801805
Pages (from-to)1-5
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Volume34
Issue number3
DOIs
Publication statusPublished - 1 May 2024

Keywords

  • critical current (IC)
  • all-electric aircraft
  • self-field
  • high temperature superconductor (HTS)

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